iwlwifi: do not use huge command buffer for channel switch

Channel switch host command do not need to allocate huge command buffer
since its size is already included in the iwl_device_cmd structure.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 19bb5b8..32710a8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -285,7 +285,7 @@
 	struct iwl_host_cmd hcmd = {
 		.id = REPLY_CHANNEL_SWITCH,
 		.len = sizeof(cmd),
-		.flags = CMD_SIZE_HUGE,
+		.flags = CMD_SYNC,
 		.data = &cmd,
 	};
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 0775145..afdeec5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -253,7 +253,7 @@
 	struct iwl_host_cmd hcmd = {
 		.id = REPLY_CHANNEL_SWITCH,
 		.len = sizeof(cmd),
-		.flags = CMD_SIZE_HUGE,
+		.flags = CMD_SYNC,
 		.data = &cmd,
 	};